In their never-ending war against the evil gold farmers of the planet, Blizzard has announced that during the month of May, over 30,000 accounts have been suspended, removing over 30 million in gold from the economy across all servers. Now, just look at those numbers for a moment: 30 thousand accounts closed. That's a number of subscribers that many small game companies would love to claim as their entire playerbase, and those are not only just the cheaters in WoW, but only the ones who got caught! And 30 million gold out of the economy...that's...well, I'm actually not sure what the hell that means, because I'm not an economist. i'm sure Ben Stien could tell you.
In any case, the bottom line is, don't cheat, or Blizzard will get you. If they're lucky. You can read the full announcement at the official homepage right here.